Building-tile.



8 ,215- Y PATENTED APR. 11, 1905. A. PPEIFFER.

BUILDING TILE. APPLICATION FILED JULY 25, 1904.

$92 asses: I /e for: WWW 1: & fgi

No, 787,2i5.

UNTTED STATES Patented April 11, 1905.

ALOIS PFElFFER, OF CHICAGO, ILLINOIS.

BUlLDING-TILE.

SPECIFICATION forming part of Letters Patent No. 787,215, dated April 11, 1905.

Application filed July 25, 1904. Serial No. 213,055.

To rn/l whomi/ lll/ll l/ I'UII/(fVITI/Z Be it known that l, Anors .Prurrrnn, a subject of the Emperor of Austria-Hungary, residing at Chicago, in the county of Cook and State of lllinois, have invented certain new and useful Improvements in Building-Tiles; and 1 do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

.\l v invention relates to a novel construction in a hollow tile or building-block particularly adapted for the construction of light partitions in buildings, the object being to provide blocks which interlock and are relatively so braced that in setting same up they are held by the interlocking devices against relative lateral movement or tipping, thereby enabling a partition-wall to be set up to a very considerable height without necessity of permitting the cement between courses to dry, and, in fact, obviating the use of any cement or mortar between the blocks or courses; and it consists in the features of construction and combinations of parts hereinafter fully described and claimed.

In the accompanying drawings, illustrating my invention, Figure l is a side elevation of a partition-wall constructed of blocks made in accordance with my invention. Fig. 2 is a vertical transverse section, on an enlarged scale, on the line 2 2 of Fig. 1.

My said block or tile consists of a substantially oblong plate A, which is provided in its long edges with recesses B and (1, having their bottoms parallel with the said side edges and having inclined sides, such recesses being so proportioned to the projections thus formed at the ends of said blocks or tiles that the bottom wall of each recess is exactly double the length of the parallel edge of the said projection, so that in setting up said blocks or tiles each recess of one block or tile receives two abutting projections of two tiles of the next upper and lower courses. The

said blocks or tiles A are provided on their upper and lower edges with tongues and grooves l) and 1), respectively, which follow the contour of said edge and extend into the recesses, said tongues of one course being adapted to enter the grooves of the tiles of the next adjacent course, said tongues and grooves being preferably disposed on the upper and lower edges, respectively, of the blocks or tiles. The said tongues and grooves while serving to hold said blocks or tiles against relative lateral movement also serve to prevent tipping or swinging of superimposed tiles by reason of the fact that the inclined portions of said tcmgues and grooves serve to provide a hold which will prevent any relative pivotal movement.

To render said tiles light, 1 provide the same with a plurality of longitudinal openings F, as indicated in Fig; 2.

The said tiles may be made partly in sections by dividing same longitiulinally or vertically, so as to lill in desired spaces, it being preferable to form the lowermost course of halftiles which rest lirmly on the floor or other support and then superimpose whole tiles above same.

n'ly said tiles are very light, durable, and. very easily set up and may be made of any suitable lireproof material.

I claim as my invention 1. A wall composed of lmilding-tiles, each tile of which comprises a llat substantially oblong plate provided in its upper edge and in its lower edge with a single recess, said rccesses having their bottom walls parallel with the upper and lower edges of the plate and the side walls of said recesses being inclined, said recesses being so proportioned to the end projections thus formed that each of same will receive two abutting end projections of two adjacent tiles of the next adjacent course, said tile being :formed with plain ends and provided on its upper and lower edges rcspeetivcly with tongues and grooves which are adapted to intcrlit to interlock said tiles and hold same against lateral displacement, said tongues and grooves following the contour of said upper and lower edges and extending into the recesses.

2. A wall composed of tiles, the tiles of the lower course having straight lower edges and a recess in the upper edge of each tile, the upper and lower edges of the balance of the tiles composing the wall being each formed with a recess in its upper edge and a recess in its lower edge and with a groove following the contour of the lower edge and extending from end to end thereof and a tongue following the contour of the upper edge and extending from end to end thereof, the recesses in the upper and lower edges of the tiles being so proportioned relatively to the end projec- IO tions formed by such recesses, that each of the same will receive two abutting end pr0- jections of two adjacent tiles of the next course.

In testimony whereof I have signed my name in presence of twosubscribing witnesses.

ALOIS PFEIFFER Witnesses:

RUDOLPH WM. LOTZ, F. ScHLo'rFELD. 

